CN217643745U

CN217643745U - PTC heating element for high-voltage automobile

Info

Publication number: CN217643745U
Application number: CN202221173482.7U
Authority: CN
Inventors: 薛传
Original assignee: Haining Yongli Electronic Ceramics Co ltd
Current assignee: Haining Yongli Electronic Ceramics Co ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-10-21
Anticipated expiration: 2032-05-17

Abstract

The utility model discloses a PTC heating element for high voltage car, including the piece that generates heat, connect platform and fixed plate, the equal fixed mounting in both sides of the piece that generates heat has the electrode slice, and outside cover between two electrode slices is equipped with heat-conducting insulating film, and the outside cover of heat-conducting insulating film is equipped with the aluminum hull, and the outside cover of aluminum hull is equipped with the special ceramic shell, and the top fixed mounting of special ceramic shell has the connection platform, and the middle part fixed mounting who connects platform one side has the angle seat, the utility model relates to a PTC heating element for high voltage car, through setting up angle pole, sliding seat and direction seat, when the fixed plate jolts along with the car in step, angle pole takes place the angle deflection along the angle seat, and the angle pole promotes sliding seat and slides in the sliding groove from one side, extrudees the buffer spring who installs at the sliding groove, and buffer spring takes place elastic deformation and cushions the power of jolting production, avoids taking place not hard up between silica gel sheathed tube's wire and the electrode slice, guarantees PTC heating element's normal use.

Description

PTC heating element for high-voltage automobile

Technical Field

The utility model relates to a high voltage car technical field specifically is a PTC heating element for high voltage car.

Background

The high-voltage automobile is provided with high-voltage parts such as a power battery, a driving motor, a high-voltage distribution box, an electric compressor, a DC/DC, an OBC, a PTC and a high-voltage wire harness, wherein the parts form a high-voltage system of the whole automobile, the PTC is mainly used for preheating an engine in winter and heating a cab, the PTC is generally directly fixed on the inner wall of the wall of a vaporizing chamber, gasoline in the vaporizing chamber is directly heated in the vaporizing chamber, so that the temperature of the gasoline is rapidly increased, the fuel combustion and gasification effects are improved, the normal starting of the automobile in a low-temperature environment is facilitated, pollution caused by automobile waste gas is reduced, the oil consumption is reduced, a PCT heating element is one of main components forming the PCT, however, the existing PTC heating element in the market is directly fixed on the inner wall of the automobile through a screw, the PTC heating element synchronously jolts along with the automobile jolt, and a lead connected with the PTC heating element is easy to slip from the PTC heating element under the force generated by the jolt, so that the normal use of the PTC heating element is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PTC heating element for high voltage car to solve the direct fix with screw at the inner wall of the car of having on the market that proposes in the above-mentioned background art, PTC heating element jolts along with the car and goes on jolting in step, and the wire of being connected with PTC heating element receives the power of jolting and producing and slips from PTC heating element easily, influences PTC heating element's normal use's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a PTC heating element for high voltage car, includes the piece that generates heat, connects platform and fixed plate, the equal fixed mounting in both sides of the piece that generates heat has the electrode slice, two outside cover between the electrode slice is equipped with the heat conduction insulating film, the outside cover of heat conduction insulating film is equipped with the aluminum hull, the outside cover of aluminum hull is equipped with special ceramic shell, the top fixed mounting of special ceramic shell has the connection platform, the middle part fixed mounting of connection platform one side has angle seat, the inside rotation of angle seat is connected with two angle poles, two the one end that angle seat was kept away from to the angle pole rotates respectively to be connected with and slides the seat, two slide the groove sliding connection that the seat was all seted up with fixed plate one side, when the car jolts, the power transmission of jolting production is to the fixed plate on, and the sliding seat on the fixed plate takes place to slide along sliding the groove, and the sliding seat drives the angle pole and takes place the angle deflection along the angle seat, and from one side extrusion buffer spring, and buffer spring has elasticity, and buffer spring takes place elastic deformation and cushions the extrusion force.

Preferably, the surface of the fixing plate is provided with a plurality of fixing holes, buffer springs are fixedly mounted between the two sliding seats and two sides of the inner wall of the sliding groove, and a worker fixes the fixing plate by using screws to penetrate through the fixing holes.

Preferably, the connecting table is fixedly provided with support angles positioned on two sides of the angle seat, and the support angles are arranged to limit the shortest distance between the fixing plate and the connecting table.

Preferably, one side of each of the two electrode plates is fixedly communicated with a silica gel sleeve penetrating through the connecting table, an external lead penetrates through the silica gel sleeve to be connected with the electrode plates, and after the electrode plates are electrified, sinusoidal alternating current is supplied by utilizing the resistivity of the liquid medium to heat the electrode plates.

Preferably, a plurality of heat conduction springs are fixedly mounted between the two sides of the inner wall of the two electrode plates and the two sides of the inner wall of the heat conduction insulating film, the electrode plates extrude the heat conduction springs from one side, the heat conduction springs have elasticity, and the heat conduction springs elastically deform to buffer extrusion force.

Preferably, a plurality of grooves are formed in the surface of the aluminum shell, and due to the grooves, the unevenness of the surface of the aluminum shell is increased, and the heat conduction area of the aluminum shell is increased.

Preferably, both ends of one side of the special ceramic shell are fixedly provided with a heat dissipation plate, a plurality of heat dissipation fins are fixedly arranged between the two heat dissipation plates, and the heat dissipation plates and the heat dissipation fins are directly contacted with the special ceramic shell to transfer and dissipate heat on the surface of the special ceramic shell.

Compared with the prior art, the beneficial effects of the utility model are that: through setting up the angle pole, slide seat and direction seat, when the fixed plate jolts along with the car in step, the angle pole takes place the angle deflection along the angle seat, and the angle pole promotes from one side and slides the seat and slide in sliding the inslot, extrudeing the buffer spring who installs in sliding the inslot, and buffer spring takes place elastic deformation and cushions the power of jolting production, avoids taking place between silica gel sheathed tube wire and the electrode slice not hard up, guarantees PTC heating element's normal use.

Drawings

Fig. 1 is a side view of the present invention;

FIG. 2 is a connection diagram of the fixing plate and the sliding seat of the present invention;

fig. 3 is a side view of the aluminum case of the present invention;

fig. 4 is a partial schematic view of the aluminum shell of the present invention.

In the figure: 1. a special ceramic shell; 2. a heat dissipation plate; 3. a heat sink; 4. a fixing plate; 5. a silica gel sleeve; 6. a fixing hole; 7. a support angle; 8. an angle seat; 9. an angle lever; 10. a sliding groove; 11. a sliding seat; 12. a buffer spring; 13. a connecting table; 14. an aluminum shell; 15. a groove; 16. a thermally conductive insulating film; 17. a heating sheet; 18. an electrode sheet; 19. a heat conductive spring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

Please refer to fig. 1-4, the utility model provides a PTC heating element for high voltage car, including heating plate 17, connection platform 13 and fixed plate 4, equal fixed mounting in both sides of heating plate 17 has electrode slice 18, outside cover between two electrode slices 18 is equipped with heat conduction insulating film 16, the outside cover of heat conduction insulating film 16 is equipped with aluminum hull 14, the outside cover of aluminum hull 14 is equipped with special ceramic shell 1, the top fixed mounting of special ceramic shell 1 has connection platform 13, the middle part fixed mounting of connection platform 13 one side has angle seat 8, the inside rotation of angle seat 8 is connected with two angle poles 9, the one end that angle seat 8 was kept away from to two angle poles 9 is rotated respectively and is connected with sliding seat 11, two sliding seat 11 all with sliding groove 10 sliding connection that fixed plate 4 one side was seted up, when the car jolts, the power that jolts to produce transmits to fixed plate 4, sliding seat 11 on fixed plate 4 slides along sliding groove 10, sliding seat 11 drives angle pole 9 and takes place the angle deflection along angle seat 8, sliding seat 11 extrudes buffer spring 12 from one side, buffer spring 12 has elasticity, buffer the extrusion force, buffer spring 12 takes place.

A plurality of fixing holes 6 are formed in the surface of the fixing plate 4, buffer springs 12 are fixedly mounted between the two sliding seats 11 and the two sides of the inner wall of the sliding groove 10, and a worker fixes the fixing plate 4 by penetrating the fixing holes 6 through screws.

The connecting table 13 is fixedly provided with supporting angles 7 positioned on two sides of the angle seat 8, and the supporting angles 7 are arranged to limit the shortest distance between the fixed plate 4 and the connecting table 13.

One side of each of the two electrode plates 18 is fixedly communicated with a silica gel sleeve 5 penetrating through the connecting table 13, an external lead penetrates through the silica gel sleeve 5 to be connected with the electrode plates 18, and after the electrode plates 18 are electrified, the electrode plates heat themselves by utilizing the resistivity of the liquid medium and passing sine alternating current.

All fixed mounting has a plurality of heat conduction spring 19 between the both sides of two electrode slices 18 and thermal insulation membrane 16 inner wall, and electrode slice 18 extrudes heat conduction spring 19 from one side, and heat conduction spring 19 has elasticity and heat conductivity, and heat conduction spring 19 takes place elastic deformation and cushions the extrusion force.

A plurality of grooves 15 are formed in the surface of the aluminum shell 14, the grooves 15 are formed, the unevenness of the surface of the aluminum shell 14 is increased, and the heat conduction area of the aluminum shell 14 is increased.

Both ends of one side of the special ceramic shell 1 are fixedly provided with a heat dissipation plate 2, a plurality of heat dissipation fins 3 are fixedly arranged between the two heat dissipation plates 2, and the heat dissipation plates 2 and the heat dissipation fins 3 are directly contacted with the special ceramic shell 1 to transfer and dissipate heat of the surface of the special ceramic shell 1.

When the embodiment of the application is used: the staff uses the screw to pass through the fixed plate 4 and fixes the fixed plate 6, after the electrode slice 18 is electrified, the self resistivity of the liquid medium is utilized, the sine alternating current is passed through, the self generates heat, after the heating sheet 17 is electrified, the temperature of the element body is increased due to the temperature rise of the heating sheet, the resistance value of the heating sheet 17 enters a jump zone, the current is rapidly reduced, then the surface temperature of the heating sheet 17 is continuously kept at a constant value, the generated heat sequentially passes through the heat conduction spring 19, the heat conduction insulating film 16 and the aluminum shell 14, the groove 15 is formed, the unevenness of the surface of the aluminum shell 14 is increased, the heat conduction area of the aluminum shell 14 is increased, the heat is transferred to the special ceramic shell 1, the heat dissipation plate 2 and the heat dissipation plate 3 are directly contacted with the special ceramic shell 1, and the heat on the surface of the special ceramic shell 1 is transferred and dissipated.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a PTC heating element for high voltage car, includes heating plate (17), connection platform (13) and fixed plate (4), its characterized in that: the equal fixed mounting in both sides of heating plate (17) has electrode slice (18), two outside cover between electrode slice (18) is equipped with heat-conducting insulation film (16), the outside cover of heat-conducting insulation film (16) is equipped with aluminum hull (14), the outside cover of aluminum hull (14) is equipped with special ceramic shell (1), the top fixed mounting of special ceramic shell (1) has connection platform (13), the middle part fixed mounting of connecting platform (13) one side has angle seat (8), the inside rotation of angle seat (8) is connected with two angle poles (9), two the one end that angle seat (8) were kept away from in angle pole (9) rotates respectively and is connected with and slides seat (11), two slide groove (10) sliding connection that seat (11) all seted up with fixed plate (4) one side.

2. A PTC heating element for a high-voltage automobile according to claim 1, wherein: the surface of the fixed plate (4) is provided with a plurality of fixed holes (6), and buffer springs (12) are fixedly arranged between the two sliding seats (11) and the two sides of the inner wall of the sliding groove (10).

3. A PTC heating element for a high-voltage automobile according to claim 1, wherein: and support angles (7) positioned at two sides of the angle seat (8) are fixedly arranged on the connecting table (13).

4. A PTC heating element for a high-voltage automobile according to claim 1, wherein: and one side of each of the two electrode plates (18) is fixedly communicated with a silica gel sleeve (5) penetrating through the connecting platform (13).

5. A PTC heating element for a high-voltage automobile according to claim 1, wherein: a plurality of heat conduction springs (19) are fixedly arranged between the two electrode plates (18) and the two sides of the inner wall of the heat conduction insulating film (16).

6. A PTC heating element for a high-voltage automobile according to claim 1, wherein: the surface of the aluminum shell (14) is provided with a plurality of grooves (15).

7. A PTC heating element for a high-voltage automobile according to claim 1, wherein: both ends of one side of the special ceramic shell (1) are fixedly provided with a heat dissipation plate (2), and a plurality of heat dissipation fins (3) are fixedly arranged between the two heat dissipation plates (2).